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This article mainly explains "how to encrypt the hard disk in Ubuntu". The content in the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "how to encrypt the hard disk in Ubuntu".

Advantages and disadvantages of encryption

While full encryption sounds great, whether or not to do so is controversial. Let's first take a look at the advantages and disadvantages of this approach.

Advantages of encryption

Increase the degree of privacy

Only the person with the key can access the operating system and its files

Make sure that the government or hackers cannot detect your system and invade your privacy

Disadvantages of encryption

It will be difficult to access and mount file systems on other Linux operating systems

Unable to recover data from those encrypted partitions

If the user loses the encryption key, it will be a complete tragedy

Preparation before installation

Encryption in Ubuntu is done at the system level before the installation process begins. It cannot be encrypted after the Ubuntu installation process starts, so back up your important data to Dropbox, Google Drive (or other hard drive), and then prepare to reinstall Ubuntu.

Download the * * version of Ubuntu from here and make a bootable U disk (at least 2 GB free space is required).

To make a boot USB disk, you need a burning program, which can be downloaded from etcher.io. After downloading, extract the zip file, right-click (or press enter after being selected with the mouse) to run the unzipped file.

Note: the burning program will ask if you want to create an icon and select "yes".

Click the "Select Image (Select Image)" button in the burning program, and select the previously downloaded Ubuntu ISO image. Then insert your flash drive. The burning program will automatically detect and select for you. *, click the "start Flash" button to start the creation process.

When finished, restart the computer to BIOS and set it to USB disk to start.

Note: if your computer does not support booting from a USB disk, download the 32-bit Ubuntu and use your computer's burning software to burn it to DVD.

Encrypt your hard drive

Once the Live Ubuntu is loaded, the installation process can begin. When the Ubuntu installation process starts, the following interface appears. Note that everyone's installation process may be different, and you may see it differently.

Select "erase disk and install Ubuntu (Erase disk and install Ubuntu)" and select "encrypt newly installed Ubuntu to increase security (Encrypt the new Ubuntu installation for Security)" to start the encryption installation process. This automatically selects LVM. Both boxes must be selected. After selecting the encryption options, click "install now (Install Now)".

Note: if you are booting a dual system, you need to install to the free disk space instead of erasing the disk. Once selected, select the encryption option as above.

After you select the encryption option and begin the installation, an encryption configuration page appears. Users on this page need to set their own encryption key for the installation process.

Enter the security key. The security key settings window will automatically rate the password strength of the key you enter, and watch the following display when using this feature until it is displayed as "strong password". After you have finished typing, enter the password here below to confirm the password. * write down the password on a piece of paper for safekeeping.

In addition, select "overwrite some disk free space (Overwrite empty disk space)", which is an optional step, of course. Click install now when everything is ready.

After setting the encryption key, the traditional Ubuntu installation is configured. Select the time zone, create the user, and the corresponding security password.

Corresponding to creating and encrypting Ubuntu disks, remember to select "password required to log in to the system (require my password to log in)" and "encrypt my home directory (encrypt my home folder)" when creating the user. This adds another layer of protection to your data.

After the user name, encryption settings, and everything else is complete, the Ubuntu installation process can begin. Then, the installation process will inform you that the installation is complete, remove the installation media and restart to enjoy the Ubuntu trip.

Thank you for your reading, the above is the content of "how to encrypt the hard disk in Ubuntu". After the study of this article, I believe you have a deeper understanding of how to encrypt the hard disk in Ubuntu, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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